CASymCipherGCM Class Reference

This class could be used for encryption/decryption of data (streams) with AES using 128bit GCM mode. More...

Inheritance diagram for CASymCipherGCM:

Public Member Functions
	CASymCipherGCM ()
	~CASymCipherGCM ()
bool	isKeyValid ()
void	setGCMKeys (UINT8 *keyRecv, UINT8 *keySend)
SINT32	encryptMessage (const UINT8 *in, UINT32 inlen, UINT8 *out)
SINT32	decryptMessage (const UINT8 *in, UINT32 inlen, UINT8 *out, bool integrityCheck)
Public Member Functions inherited from CALockAble
	CALockAble ()
virtual	~CALockAble ()
SINT32	lock ()
	Locks the lockable object by threadsafe incrementing a reference counter. More...
SINT32	unlock ()
	Unlocks the lockable object by threadsafe decrementing a reference counter. More...

Protected Attributes
bool	m_bKeySet

Private Attributes
CAMutex *	m_pcsEnc
CAMutex *	m_pcsDec
gcm_ctx_64k *	m_pGCMCtxEnc
gcm_ctx_64k *	m_pGCMCtxDec
UINT32	m_nEncMsgCounter
UINT32 *	m_pEncMsgIV
UINT32	m_nDecMsgCounter
UINT32 *	m_pDecMsgIV

Additional Inherited Members
Protected Member Functions inherited from CALockAble
SINT32	waitForDestroy ()
	If called checks if the reference counter equals zero. More...

Detailed Description

This class could be used for encryption/decryption of data (streams) with AES using 128bit GCM mode.

Constructor & Destructor Documentation

CASymCipherGCM()

CASymCipherGCM::CASymCipherGCM

(

)

References m_bKeySet, m_nDecMsgCounter, m_nEncMsgCounter, m_pcsDec, m_pcsEnc, m_pDecMsgIV, m_pEncMsgIV, m_pGCMCtxDec, and m_pGCMCtxEnc.

~CASymCipherGCM()

CASymCipherGCM::~CASymCipherGCM

(

)

References m_pcsDec, m_pcsEnc, m_pDecMsgIV, m_pEncMsgIV, m_pGCMCtxDec, m_pGCMCtxEnc, and CALockAble::waitForDestroy().

Member Function Documentation

decryptMessage()

SINT32 CASymCipherGCM::decryptMessage	(	const UINT8 *	in,
		UINT32	inlen,
		UINT8 *	out,
		bool	integrityCheck
	)

References E_SUCCESS, E_UNKNOWN, m_nDecMsgCounter, m_pDecMsgIV, and m_pGCMCtxDec.

Referenced by CALastMixA::loop().

encryptMessage()

SINT32 CASymCipherGCM::encryptMessage	(	const UINT8 *	in,
		UINT32	inlen,
		UINT8 *	out
	)

References E_SUCCESS, m_nEncMsgCounter, m_pEncMsgIV, and m_pGCMCtxEnc.

Referenced by CALastMixA::loop().

isKeyValid()

bool CASymCipherGCM::isKeyValid

(

)

References m_bKeySet.

setGCMKeys()

void CASymCipherGCM::setGCMKeys	(	UINT8 *	keyRecv,
		UINT8 *	keySend
	)

References m_nDecMsgCounter, m_nEncMsgCounter, m_pDecMsgIV, m_pEncMsgIV, m_pGCMCtxDec, and m_pGCMCtxEnc.

Referenced by CALastMixA::loop().

Member Data Documentation

m_bKeySet

bool CASymCipherGCM::m_bKeySet

protected

Referenced by CASymCipherGCM(), and isKeyValid().

m_nDecMsgCounter

UINT32 CASymCipherGCM::m_nDecMsgCounter

private

Referenced by CASymCipherGCM(), decryptMessage(), and setGCMKeys().

m_nEncMsgCounter

UINT32 CASymCipherGCM::m_nEncMsgCounter

private

Referenced by CASymCipherGCM(), encryptMessage(), and setGCMKeys().

m_pcsDec

CAMutex* CASymCipherGCM::m_pcsDec

private

Referenced by CASymCipherGCM(), and ~CASymCipherGCM().

m_pcsEnc

CAMutex* CASymCipherGCM::m_pcsEnc

private

Referenced by CASymCipherGCM(), and ~CASymCipherGCM().

m_pDecMsgIV

UINT32* CASymCipherGCM::m_pDecMsgIV

private

Referenced by CASymCipherGCM(), decryptMessage(), setGCMKeys(), and ~CASymCipherGCM().

m_pEncMsgIV

UINT32* CASymCipherGCM::m_pEncMsgIV

private

Referenced by CASymCipherGCM(), encryptMessage(), setGCMKeys(), and ~CASymCipherGCM().

m_pGCMCtxDec

gcm_ctx_64k* CASymCipherGCM::m_pGCMCtxDec

private

Referenced by CASymCipherGCM(), decryptMessage(), setGCMKeys(), and ~CASymCipherGCM().

m_pGCMCtxEnc

gcm_ctx_64k* CASymCipherGCM::m_pGCMCtxEnc

private

Referenced by CASymCipherGCM(), encryptMessage(), setGCMKeys(), and ~CASymCipherGCM().